feat(workstate): read-model live-state minimal des conversations/délégations (Lot A backend)

Introduit le module application `workstate` (modèle de read-model live + snapshots
des conversations/délégations en cours) et l'expose via la couche terminal
(exports mod/registry). Câble la surface Tauri : DTO, commande et state pour
exposer le live-state au frontend (lib + state + commands), avec tests.

QA verte. Réserve environnementale non bloquante : tests loopback socket Unix
réels non exécutables en sandbox (UnixListener::bind PermissionDenied),
alternatives avec skips vertes.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

crates/application/tests/workstate.rs

@@ -0,0 +1,307 @@
+//! Tests for the project work-state read model.
+
+use std::collections::HashMap;
+use std::future::Future;
+use std::pin::Pin;
+use std::sync::{Arc, Mutex};
+
+use async_trait::async_trait;
+
+use application::{
+    GetProjectWorkState, GetProjectWorkStateInput, LiveSessionKind, LiveSessions,
+    StructuredSessions, TerminalSessions,
+};
+use domain::mailbox::{MailboxError, PendingReply, Ticket};
+use domain::ports::{
+    AgentContextStore, AgentSession, AgentSessionError, PtyHandle, ReplyStream, StoreError,
+};
+use domain::{
+    Agent, AgentBusyState, AgentId, AgentManifest, AgentOrigin, InputMediator, ManifestEntry,
+    MarkdownDoc, NodeId, ProfileId, Project, ProjectId, ProjectPath, PtySize, RemoteRef, SessionId,
+    SessionKind, TerminalSession,
+};
+use uuid::Uuid;
+
+fn aid(n: u128) -> AgentId {
+    AgentId::from_uuid(Uuid::from_u128(n))
+}
+
+fn pid(n: u128) -> ProfileId {
+    ProfileId::from_uuid(Uuid::from_u128(n))
+}
+
+fn sid(n: u128) -> SessionId {
+    SessionId::from_uuid(Uuid::from_u128(n))
+}
+
+fn nid(n: u128) -> NodeId {
+    NodeId::from_uuid(Uuid::from_u128(n))
+}
+
+fn ticket_id(n: u128) -> domain::TicketId {
+    domain::TicketId::from_uuid(Uuid::from_u128(n))
+}
+
+fn project() -> Project {
+    Project::new(
+        ProjectId::from_uuid(Uuid::from_u128(1)),
+        "demo",
+        ProjectPath::new("/tmp/idea-workstate-test").unwrap(),
+        RemoteRef::local(),
+        1_700_000_000_000,
+    )
+    .unwrap()
+}
+
+fn agent(n: u128, name: &str) -> Agent {
+    Agent::new(
+        aid(n),
+        name,
+        format!("agents/{name}.md"),
+        pid(100 + n),
+        AgentOrigin::Scratch,
+        false,
+    )
+    .unwrap()
+}
+
+fn manifest(agents: &[Agent]) -> AgentManifest {
+    AgentManifest::new(1, agents.iter().map(ManifestEntry::from_agent).collect()).unwrap()
+}
+
+#[derive(Clone)]
+struct FakeContexts {
+    manifest: AgentManifest,
+}
+
+#[async_trait]
+impl AgentContextStore for FakeContexts {
+    async fn read_context(
+        &self,
+        _project: &Project,
+        _agent: &AgentId,
+    ) -> Result<MarkdownDoc, StoreError> {
+        Err(StoreError::NotFound)
+    }
+
+    async fn write_context(
+        &self,
+        _project: &Project,
+        _agent: &AgentId,
+        _md: &MarkdownDoc,
+    ) -> Result<(), StoreError> {
+        Ok(())
+    }
+
+    async fn load_manifest(&self, _project: &Project) -> Result<AgentManifest, StoreError> {
+        Ok(self.manifest.clone())
+    }
+
+    async fn save_manifest(
+        &self,
+        _project: &Project,
+        _manifest: &AgentManifest,
+    ) -> Result<(), StoreError> {
+        Ok(())
+    }
+}
+
+#[derive(Default)]
+struct FakeInput {
+    busy: Mutex<HashMap<AgentId, AgentBusyState>>,
+}
+
+impl FakeInput {
+    fn set_busy(&self, agent: AgentId, busy: AgentBusyState) {
+        self.busy.lock().unwrap().insert(agent, busy);
+    }
+}
+
+impl InputMediator for FakeInput {
+    fn enqueue(&self, _agent: AgentId, _ticket: Ticket) -> PendingReply {
+        let fut: Pin<Box<dyn Future<Output = Result<String, MailboxError>> + Send>> =
+            Box::pin(async { Err(MailboxError::Cancelled) });
+        PendingReply::new(fut)
+    }
+
+    fn preempt(&self, _agent: AgentId) {}
+
+    fn mark_idle(&self, _agent: AgentId) {}
+
+    fn busy_state(&self, agent: AgentId) -> AgentBusyState {
+        self.busy
+            .lock()
+            .unwrap()
+            .get(&agent)
+            .copied()
+            .unwrap_or(AgentBusyState::Idle)
+    }
+}
+
+struct FakeSession {
+    id: SessionId,
+}
+
+#[async_trait]
+impl AgentSession for FakeSession {
+    fn id(&self) -> SessionId {
+        self.id
+    }
+
+    fn conversation_id(&self) -> Option<String> {
+        None
+    }
+
+    async fn send(&self, _prompt: &str) -> Result<ReplyStream, AgentSessionError> {
+        Ok(Box::new(std::iter::empty()))
+    }
+
+    async fn shutdown(&self) -> Result<(), AgentSessionError> {
+        Ok(())
+    }
+}
+
+fn fake_session(id: SessionId) -> Arc<dyn AgentSession> {
+    Arc::new(FakeSession { id })
+}
+
+fn insert_pty(
+    sessions: &TerminalSessions,
+    session_id: SessionId,
+    agent_id: AgentId,
+    node_id: NodeId,
+) {
+    sessions.insert(
+        PtyHandle { session_id },
+        TerminalSession::starting(
+            session_id,
+            node_id,
+            ProjectPath::new("/tmp/idea-workstate-test").unwrap(),
+            SessionKind::Agent { agent_id },
+            PtySize { rows: 24, cols: 80 },
+        ),
+    );
+}
+
+struct Fixture {
+    usecase: GetProjectWorkState,
+    pty: Arc<TerminalSessions>,
+    structured: Arc<StructuredSessions>,
+    input: Arc<FakeInput>,
+    project: Project,
+}
+
+fn fixture(agents: &[Agent]) -> Fixture {
+    let pty = Arc::new(TerminalSessions::new());
+    let structured = Arc::new(StructuredSessions::new());
+    let live = Arc::new(LiveSessions::new(Arc::clone(&pty), Arc::clone(&structured)));
+    let input = Arc::new(FakeInput::default());
+    let input_port = Arc::clone(&input) as Arc<dyn InputMediator>;
+    let usecase = GetProjectWorkState::new(
+        Arc::new(FakeContexts {
+            manifest: manifest(agents),
+        }),
+        live,
+        input_port,
+    );
+    Fixture {
+        usecase,
+        pty,
+        structured,
+        input,
+        project: project(),
+    }
+}
+
+#[tokio::test]
+async fn workstate_lists_manifest_agents_idle_without_live_sessions() {
+    let a = agent(10, "alpha");
+    let b = agent(20, "beta");
+    let f = fixture(&[a.clone(), b.clone()]);
+
+    let out = f
+        .usecase
+        .execute(GetProjectWorkStateInput { project: f.project })
+        .await
+        .unwrap();
+
+    assert_eq!(out.agents.len(), 2);
+    assert_eq!(out.agents[0].agent_id, a.id);
+    assert_eq!(out.agents[0].name, "alpha");
+    assert_eq!(out.agents[0].profile_id, a.profile_id);
+    assert_eq!(out.agents[0].live, None);
+    assert_eq!(out.agents[0].busy, AgentBusyState::Idle);
+    assert_eq!(out.agents[1].agent_id, b.id);
+}
+
+#[tokio::test]
+async fn workstate_attaches_live_pty_session_to_manifest_agent() {
+    let a = agent(10, "alpha");
+    let f = fixture(std::slice::from_ref(&a));
+    insert_pty(&f.pty, sid(1), a.id, nid(100));
+
+    let out = f
+        .usecase
+        .execute(GetProjectWorkStateInput { project: f.project })
+        .await
+        .unwrap();
+
+    let live = out.agents[0].live.unwrap();
+    assert_eq!(live.session_id, sid(1));
+    assert_eq!(live.node_id, nid(100));
+    assert_eq!(live.kind, LiveSessionKind::Pty);
+}
+
+#[tokio::test]
+async fn workstate_attaches_live_structured_session_to_manifest_agent() {
+    let a = agent(10, "alpha");
+    let f = fixture(std::slice::from_ref(&a));
+    f.structured.insert(fake_session(sid(2)), a.id, nid(200));
+
+    let out = f
+        .usecase
+        .execute(GetProjectWorkStateInput { project: f.project })
+        .await
+        .unwrap();
+
+    let live = out.agents[0].live.unwrap();
+    assert_eq!(live.session_id, sid(2));
+    assert_eq!(live.node_id, nid(200));
+    assert_eq!(live.kind, LiveSessionKind::Structured);
+}
+
+#[tokio::test]
+async fn workstate_includes_busy_state_from_input_mediator() {
+    let a = agent(10, "alpha");
+    let f = fixture(std::slice::from_ref(&a));
+    let busy = AgentBusyState::Busy {
+        ticket: ticket_id(7),
+        since_ms: 1_234,
+    };
+    f.input.set_busy(a.id, busy);
+
+    let out = f
+        .usecase
+        .execute(GetProjectWorkStateInput { project: f.project })
+        .await
+        .unwrap();
+
+    assert_eq!(out.agents[0].busy, busy);
+}
+
+#[tokio::test]
+async fn workstate_ignores_live_agents_absent_from_manifest() {
+    let a = agent(10, "alpha");
+    let f = fixture(std::slice::from_ref(&a));
+    insert_pty(&f.pty, sid(99), aid(999), nid(999));
+
+    let out = f
+        .usecase
+        .execute(GetProjectWorkStateInput { project: f.project })
+        .await
+        .unwrap();
+
+    assert_eq!(out.agents.len(), 1);
+    assert_eq!(out.agents[0].agent_id, a.id);
+    assert_eq!(out.agents[0].live, None);
+}